Philips AC4002 is a bedroom air purifier with a multi-stage filtration system that removes 99.97% of airborne particles, including bacteria, viruses, dust, pollen, and pet dander. It also has an activated carbon filter to remove odors and harmful gases, such as formaldehyde and benzene. With its compact design and quiet operation, the AC4002 is ideal for bedrooms and other small spaces.
Philips AC4002 is a bedroom air purifier with a multi-stage filtration system that removes 99.97% of airborne particles, including bacteria, viruses, dust, pollen, and pet dander. It also has an activated carbon filter to remove odors and harmful gases, such as formaldehyde and benzene. With its compact design and quiet operation, the AC4002 is ideal for bedrooms and other small spaces.
AC4002
AC4004
Register your product and get support at
www.philips.com/welcome
User manual
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Congratulations on your purchase and welcome to Philips! To fully benet
from the support that Philips offers, register your product at www.philips.
com/welcome.
With this new bedroom air purier you breathe cleaner air. For the best
results, place the bedroom air purier in a room where you spend most of
your time, e.g. the bedroom.
Wherever there are people, plants or pets, there are airborne particles that
can affect your well-being, especially if you suffer from allergies. Because of
these particles, the air inside a room may be more polluted than the air in
a large city.
Normally, particles are invisible and odourless. Nevertheless, they can affect
your health. The bedroom air purier reduces the amount of animal dander
and industrial pollutants in the air, and therefore improves the air quality.
It also lters out ultrane particles larger than 20 nanometres, including
bacteria and some viruses. According to publications of the World Health
Organization, the avian and human inuenza viruses and the Legionella
bacterium are larger than 20 nanometres.
The bedroom air purier has a unique multi-stage ltration system that
ensures the best air quality:
- Stage 1: The pre-lter has been treated with antibacterial substances. It
catches big particles like human hair, pet hair etc.
- Stage 2 : In combination with the HEPA lter, the multi-care lter lters
out dust, pollen and ultrane particles larger than 20 nanometres,
including bacteria and some viruses. According to publications of the
World Health Organization, the avian and human inuenza viruses and
Legionella bacterium are larger than 20 nanometres.
- Stage 3: The activated carbon lter lters out odours and harmful gases
effectively.
- Stage 4: The high-performance composite HEPA lter with anti-
bacterial coating effectively lters out ne dust and cigarette smoke,
while the antibacterial and anti-mould functions of organic antibacterial
materials lter out germs and mould.
Air quality sensor outlet
Air quality sensor
Air quality sensor inlet
Air inlet
Mains cord
Air outlet
Handle
Control panel
Pre-lter cleaning light
Filter replacement lights
REPLACE FILTER light with ‘appliance locked’ indication
AIR QUALITY lights (AC4004: 4 lights, AC4002: 3 lights)
HOUR lights
TIMER on/off button with light
AUTO button with light
SLEEP button with light
Power on/off button with light
FAN SPEED button with light
FAN SPEED lights (AC4004: 3 lights, AC4002: 2 lights)
RESET button for pre-lter
RESET button for lter 2
RESET button for lter 3/4
Filter 4: HEPA lter (AC4124)
Filter 3: activated carbon lter (AC4123)
Filter 2 (AC4004 only): multi-care lter (AC4121)
Filter 1: pre-lter
Front panel
Read this user manual carefully before you use the appliance and save it for
future reference.
- Do not let water or any other liquid or ammable detergent enter the
appliance to avoid electric shock and/or a re hazard.
- Do not clean the appliance with water or any other liquid or a
(ammable) detergent to avoid electric shock and/or a re hazard.
- Check if the voltage indicated on the bottom of the appliance
corresponds to the local mains voltage before you connect the
appliance.
- If the mains cord is damaged, you must have it replaced by Philips, a
service centre authorised by Philips or similarly qualied persons in
order to avoid a hazard.
- Do not use the appliance if the plug, the mains cord or the appliance
itself is damaged.
- This appliance is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for
their safety.
- Children should be supervised to ensure that they do not play with the
appliance.
- Do not block the air inlet and outlet, e.g. by placing items on the air
outlet or in front of the air inlet.
- This appliance is not a substitute for proper ventilation, regular vacuum
cleaning or use of an extractor hood or fan while cooking.
- If the wall socket used to power the appliance has poor connections,
the plug of the appliance may become hot. Make sure you plug the
appliance into a properly connected wall socket.
- Always place and use the appliance on a dry, stable, level and horizontal
surface.
- Leave at least 20cm free space behind and on both sides of the
appliance and leave at least 30cm free space above the appliance.
- Do not place anything on top of the appliance and do not sit on the
appliance.
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- Do not place the appliance directly below an air conditioner to prevent
condensation from dripping onto the appliance.
- Make sure all lters are properly installed before you switch on the
appliance.
- Only use the original Philips lters specially intended for this appliance.
Do not use any other lters.
- Avoid knocking against the appliance (the air inlet and outlet in
particular) with hard objects.
- Always lift or move the appliance by the handgrip at the back of the
appliance.
- Do not insert your ngers or objects into the air outlet.
- Do not use this appliance when you have used indoor smoke-type
insect repellents or in places with oily residues, burning incense or
chemical fumes.
- Do not use the appliance near gas appliances, heating devices or
replaces.
- Always unplug the appliance after use and before you clean it.
- Do not use the appliance in a room with major temperature changes,
as this may cause condensation inside the appliance.
- To prevent interference, place the appliance at least 2m away from
electrical appliances that use airborne radio waves such as TVs, radios
and radio-controlled clocks.
- When the air purier is not used for a long time, bacteria may grow on
the lters. Check the lters after a long period of disuse. If the lters
are very dirty, replace them (see chapter ‘Filter replacement’).
- The appliance is only intended for household use under normal
operating conditions.
- Do not use the appliance in wet surroundings or in surroundings with
high ambient temperatures, such as the bathroom, toilet or kitchen.
- The appliance does not remove carbon monoxide (CO) or radon
(Rn). It cannot be used as a safety device in case of accidents with
combustion processes and hazardous chemicals.
This Philips appliance complies with all standards regarding electromagnetic
elds (EMF). If handled properly and according to the instructions in this
user manual, the appliance is safe to use based on scientic evidence
available today.
The appliance comes with all lters tted inside, but you have to remove
the packaging of the lters before you can use the appliance. Remove all
lters, unpack them and place them back into the appliance as described
below.
Tip: Place the appliance against a wall for more stability when you remove or
insert lters.
Note: Make sure you insert the lters in the correct position.
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1 Place your ngers in the recesses of the side panels and gently pull
the bottom of the front panel towards you. Then lift the hooks at the
top of the panel out of the top of the appliance.
2 To remove the pre-lter, grab the two projections and pull the lter
towards you.
3 Remove all other lters from the appliance.
4 Remove all packaging material from the lters.
5 Put lter 4 (HEPA lter) back into the appliance.
Note: Make sure that the side with the tag points towards you.
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6 Put lter 3 (activated carbon lter) back into the appliance.
7 AC4004 only: attach lter 2 (multi-care lter) to the back of lter 1
(pre-lter).
Note: Make sure that the front of lter 2 (multi-care lter), that is the side with
the tag, points towards the pre-lter.
8 Place lter 1 (pre-lter) in the appliance.
Note: AC4004: make sure the multi-care lter is attached to the back of the
pre-lter.
Note: Make sure that the side with the two projections points towards you.
Note: Make sure that all hooks are properly attached to the appliance.
9 To reattach the front panel, insert the two hooks into the top of
the appliance rst (1). Then push the panel against the body of the
appliance (2).
1 Put the plug in the wall socket
, All lights go on and off twice and you hear a beep.
2 Press the on/off button to switch on the appliance.
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, The power-on light and one of the AIR QUALITY lights on the
control panel goes on.
Colour Air quality
Blue very good
Deep purple good
Purple fair
Red bad
Colour Air quality
Blue very good
Deep purple good
Red bad
, The appliance automatically starts operating in the auto mode.
To switch off the appliance, press and hold the on/off button again until the
power-on light goes out and unplug the appliance.
Note: When the humidity level in the room is very high, it is possible that
condensation develops on the air quality sensor. As a result, the AIR QUALITY
lights on the control panel may indicate that the air quality is bad even though
the air quality is good. In this case, the auto mode causes the appliance to
run at high fan speed. You can solve this by cleaning the air quality sensor. If
condensation develops frequently during periods of high humidity, we advise
you to use one of the manual speed settings.
When the appliance is switched on, the built-in air quality sensor
automatically measures the ambient air quality. When the auto mode is
activated, the appliance selects the most appropriate fan speed for the
measured air quality.
Note: When you use the auto mode, you can also use the timer function (see
section ‘Timer function in this chapter). In this case, the AUTO light, one of the
FAN SPEED lights, the TIMER light and one of the HOUR lights are on.
1 Press the on/off button to switch on the appliance.
, The appliance automatically starts operating in the auto mode.
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Theairqualitylightringshowsthequalityoftheair.
Air quality indication
Colour Airquality
Blue very good
Deep purple good
Purple fair
Red bad
To switch off the air quality light ring, press the AIR QUALITY button.
Note: The air quality light ring automatically goes on when the appliance is
switched on.
TheapplianceautomaticallystartsoperatingintheAUTOmode.
To switch off the appliance, press the on/off button again and unplug the
appliance.
Note: When the humidity level in the room is very high, it is possible that
condensation develops on the air quality sensor. As a result, the AIR QUALITY
light on the control panel and the air quality light ring may indicate that the
air quality is bad even though the air quality is good. In this case, the auto
mode causes the appliance to run at high fan speed. You can solve this by
cleaning the air quality sensor. If condensation develops frequently during
periods of high humidity, we advise you to use one of the manual speed
settings.
Fan speed lights/lter replacement lights
- The lights on the right-hand side of the control panel have a dual
function: they either indicate the fan speed or they indicate that the
lters should be replaced or cleaned.
- When lights 1 to 3/4 light up continuously, they indicate the current fan
speed.
- When light 1 ashes, you have to clean the pre-lter. When lights 2
and/or 3/4 ash, you have to replace these lters. If lights 2 and/or
3/4 ash, the REPLACE FILTER light also ashes (see chapter ‘Filter
replacement’ for more information).
- When lights 2, 3/4 and the REPLACE FILTER light are on continuously,
the appliance is locked (see chapter ‘Filter replacement lock’ for more
information).
Adjusting the air quality sensor sensitivity
People with certain health problems (e.g. allergies or asthma) have a
greater need for healthy air. For this reason, the appliance allows you to
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Note: When the appliance is operating in another mode and you want to
activate the auto mode, simply press the AUTO button.
, The AUTO light and one of the FAN SPEED lights go on. The FAN
SPEED light indicates at which fan speed the appliance is operating.
Note: When the air quality is very good and the fan speed operates at a very
low fan speed, the FAN SPEED light for the lowest speed level does not go on.
In this case only the power-on light and the AUTO light are on.
Note: The built-in air quality sensor measures the air quality and automatically
selects the appropriate speed setting to ensure the best possible air quality in
your room. When the air is clean, the appliance stops running. When the air
quality deteriorates, the appliance starts running at a low fan speed and noise
level so that the energy consumption is minimised.
If you do not use the auto mode, you can select the desired fan speed
yourself.
Note: When you manually select a fan speed, you can also use the timer
function (see section ‘Timer function in this chapter). In this case, one of the
FAN SPEED lights, the TIMER light and one of the HOUR lights are on.
1 Press the on/off button to switch on the appliance.
2 Press the FAN SPEED button one or more times to select the
desired fan speed.
, The corresponding FAN SPEED light shows the set fan speed.
With the timer function, you can let the appliance operate for a
set number of hours. When the set time has elapsed, the appliance
automatically switches off.
You can use the timer function in a number of situations:
- In combination with the AUTO mode (see section ‘Auto mode’ in this
chapter). In this case, the AUTO light, one of the FAN SPEED lights, the
TIMER light and one of the HOUR lights are on.
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- When you choose a fan speed manually (see section ‘Fan speed’ in this
chapter). In this case, one of the FAN SPEED lights, the TIMER light and
one of the HOUR lights are on.
- In combination with the SLEEP mode (see section ‘Sleep mode’ in this
chapter). In this case, the SLEEP light and one of the HOUR lights are
on (but dimmed).
1 Press the on/off button to switch on the appliance.
2 Press the TIMER button to activate the timer.
, The TIMER light goes on.
3 Press the TIMER button repeatedly to choose the number of hours
you want the appliance to operate.
, The corresponding HOUR light goes on.
To deactivate the timer function, press the TIMER button repeatedly until
the HOUR light and the TIMER light are out.
When you use the appliance in sleep mode, it operates very quietly and all
the lights that are on are dimmed, to allow you to sleep undisturbed.
Note: When you use the sleep mode, you can also use the timer function (see
section ‘Timer function in this chapter). In this case, the SLEEP light and one of
the HOUR lights are on (but dimmed).
1 Press the on/off button to switch on the appliance.
2 Press the SLEEP button to activate the quiet sleep mode.
, The SLEEP light goes on.
, All other lights are off, except one of the HOUR lights if you have
activated the timer function.
If you want to go back to the fan speed mode or auto mode, simply press
the FAN SPEED or AUTO button. The sleep mode is then deactivated.
People with certain health problems (e.g. allergies or asthma) have a
greater need for healthy air. For this reason, the air purier allows you to
adjust the sensitivity of the air quality sensor. When it is set to a higher
sensitivity level, the appliance already starts cleaning the air at lower
pollution levels to make the air even cleaner.
There are 3 sensitivity levels:
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- extra sensitive
- sensitive
- standard
The air quality sensor is set to standard sensitivity. You can adjust the
sensitivity of the air quality sensor in the following way:
1 If the appliance is already plugged in, unplug the appliance and wait
for a few minutes.
2 Press and hold the TIMER button and simultaneously put the mains
plug in the wall socket.
, The appliance beeps twice and one of the HOUR lights ashes to
show the current sensitivity level of the air quality sensor.
HOUR light Sensitivity level
1hr extra sensitive
4hrs sensitive
8hrs standard
3 Press the TIMER button to adjust the sensitivity level of the air
quality sensor.
, One of the HOUR lights ashes to show the set sensitivity level of
the air quality sensor.
4 Press and hold the on/off button to switch off the appliance.
Note: When you change the sensitivity level, the appliance automatically starts
operating at the set sensitivity level whenever you switch on the appliance.
Always unplug the appliance before you clean it.
Never immerse the appliance in water or any other liquid.
Never use aggressive or ammable cleaning agents such as bleach or
alcohol to clean any part of the appliance.
Only the pre-lter is washable. All other lters are NOT washable.
Regularly clean the inside and outside of the body to prevent dust from
collecting on the inside and outside.
1 Wipe away dust with a soft dry cloth from the body of the appliance.
2 Clean the air inlet and the air outlet with a soft dry cloth.
The pre-lter is washable.
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adjust the sensitivity of the air quality sensor. When it is set to a higher
sensitivity level, the appliance already starts cleaning the air at lower
pollution levels to make the air even cleaner.
There are 3 sensitivity levels:
- standard
- sensitive
- extra sensitive
The pollution sensor is set to standard sensitivity. You can adjust the
sensitivity of the air quality sensor in the following way:
1 Iftheapplianceisalreadypluggedin,unplugtheapplianceandwait
forafewminutes.
2 PresstheAIRQUALITYbuttonandsimultaneouslyputthemains
pluginthewallsocket.
Theappliancebeepstwiceandoneofthefanspeedlightsashesto
showthecurrentsensitivityleveloftheairqualitysensor.
Sensitivity level:
Fanspeedlight Sensitivitylevel
1 extra sensitive
2 sensitive
3 standard
3 PresstheFANSPEEDbuttontoadjustthesensitivityleveloftheair
qualitysensor.
Oneofthefanspeedlightsashestoshowthesetsensitivitylevelof
theairqualitysensor.
4 Presstheon/offbuttontoswitchofftheappliance.
Note: When you change the sensitivity level, the appliance automatically starts
operating at the set sensitivity level whenever you switch on the appliance.
Auto mode
When the appliance is switched on, the built-in air quality sensor
automatically measures the ambient air quality. When the auto mode is
activated, the appliance selects the most appropriate fan speed for the
measured air quality.
1 Presstheon/offbuttontoswitchontheappliance.
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AC4072-4074_um_120424.indd 14 24/04/2012 15:47:32
- Clean the pre-lter when the lter cleaning light ashes to ensure
optimal functioning of the appliance.
1 Unplug the appliance.
2 Place your ngers in the recesses of the side panels and gently pull
the bottom of the front panel towards you. Then lift the hooks at the
top of the panel out of the top of the appliance.
3 To remove the pre-lter, grab the two projections and pull the lter
towards you.
4 AC4004 only: remove the multi-care lter from the back of the pre-
lter.
5 Wash the pre-lter under a running tap. If the pre-lter is very dirty,
use a soft brush to brush away the dirt.
Tip: Alternatively, you can clean the pre-lter by removing the dust with a
vacuum cleaner.
6 Air-dry the pre-lter.
Note: Make sure that the pre-lter is completely dry.
7 AC4004 only: reattach the multi-care lter to the back of the pre-
lter.
Note: Make sure that the front of the multi-care lter is pointing towards the
pre-lter.
8 Put the pre-lter back into the appliance. Attach all hooks properly
to the appliance.
Note: Make sure that the side with the two projections is pointing towards you.
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9 To reattach the front panel, insert the two hooks into the top of
the appliance rst (1). Then push the panel against the body of the
appliance (2).
10 Put the plug in the wall socket.
11 Press and hold the reset button for lter 1 (the button below the
lter cleaning light) for 2 seconds to reset the appliance.
Clean the air quality sensor every 2 months for optimal functioning of
the appliance. Clean it more frequently if you use the appliance in a dusty
environment.
Note: When the humidity level in the room is very high, it is possible that
condensation develops on the air quality sensor. As a result, the AIR QUALITY
light on the control panel may indicate that the air quality is bad even though
the air quality is good. In this case you have to clean the air quality sensor or
use one of the manual speed settings.
1 Clean the air quality sensor inlet and the air quality sensor
outlet with a soft brush.
2 Remove the air quality sensor cover.
3 Clean the air quality sensor, the dust inlet and the dust outlet with a
lightly moistened cotton swab.
4 Dry them with a dry cotton swab.
5 Reattach the air quality sensor cover.
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When one of the lters is almost full and has to be cleaned or replaced,
the corresponding light or lights (the pre-lter cleaning light or one of the
lter replacement lights together with the ‘REPLACE FILTER’ light) start to
ash. You then have to clean or replace this lter.
This air purier is also equipped with the Healthy air protect lock to ensure
that the lters are in optimal condition when the appliance is operating.
When you do not replace lter 2 (AC4004 only), lter 3 and/or lter 4, the
appliance stops operating and the appliance is locked. When the appliance
is locked, the lter replacement light of the lter concerned and the
’REPLACE FILTER’ light light up continuously.
The lter cleaning light and the lter replacement lights indicate which lter
has to be cleaned or replaced.
- Filter cleaning light 1 ashes: you have to clean lter 1 (pre-lter). See
chapter ‘Cleaning’ for further instructions.
- Filter replacement light 2 and the ‘REPLACE FILTER’ light ash: lter 2
(multi-care lter, AC4004 only) has to be replaced.
- Filter replacement light 3/4 and the ‘REPLACE FILTER’ light ash: lter 3
(activated carbon lter) and lter 4 (HEPA lter) have to be replaced.
Note: Filter 3 (activated carbon lter) and lter 4 (HEPA lter) have a similar
lifetime. Therefore they have to be replaced at the same time.
If you do not replace a lter in time, the appliance stops operating approx.
2 weeks after the lter replacement light started ashing. When the
appliance is locked, it does not operate until you have replaced the full lter
and pressed the reset button.
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Note: The time between the lter replacement signal and the locking of the
appliance varies, depending on how often you use the appliance.
Note: When the power on/off light, lter replacement light 2 or 3/4 and the
‘REPLACE FILTER’ light are on continuously, the appliance is locked (see section
‘Filter maintenance’ in this chapter for more information).
Approximately 1 day before the appliance locks, it beeps every 30 minutes
to inform you that one of the lters needs to be replaced.
When the appliance is locked, you hear a beep when you press any button.
You can switch off the appliance by pressing and holding the on/off button.
If the appliance is locked:
1 Check which lter needs to be replaced (see section ‘Filter cleaning
light and lter replacement lights’ above).
2 Switch off the appliance and unplug it.
3 Replace the appropriate lter (see section ‘Replacing the lters and
resetting the appliance’ below).
Tip: Place the appliance against a wall for more stability when you remove or
insert lters.
1 Switch off the appliance and unplug it.
2 Place your ngers in the recesses of the side panels and gently pull
the bottom part of the front panel towards you. Then lift the hooks
at the top of the panel out of the top of the appliance.
3 To remove lter 1 (pre-lter), grab the two projections and pull the
lter towards you.
4 AC4004 only: remove lter 2 (multi-care lter) from the back of the
pre-lter.
1
2
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- Filter replacement light 1 ashes: lter 1 (the pre-lter) has to be
cleaned. See chapter ‘Cleaning’ for further instructions.
- Filter replacement light 2 ashes: lter 2 (the formaldehyde lter
(supplied with AC4074) or multi-care lter (supplied with AC4072))
has to be replaced.
- Filter replacement light 3/4 ashes: the activated carbon lter and the
HEPA lter have to be replaced.
Note: The HEPA lter and the activated carbon lter have a similar lifetime.
Therefore they have to be replaced at the same time.
Filter replacement lock
If you do not replace the lter in time, the appliance stops operating
approx. 2 weeks after the lter replacement light started ashing.When the
appliance is locked, it does not operate until you have replaced the full lter
and pressed the reset button.
Note: When lter replacement lights 2 or 3/4 and REPLACE FILTER on the
control panel are on continuously, the appliance is locked (see section ‘Filter
maintenance’ in this chapter for more information).
How long it takes before the appliance is locked depends on the operating
time and speed level selected after the lter replacement alert.
Approximately 1 day before the appliance locks, it beeps every 30 minutes
to inform you that one of the lters needs to be replaced.
When the appliance is locked, you hear a beep when you press any button.
You can switch off the appliance by pressing the on/off button.
If the appliance is locked:
1 Checkwhichlterneedstobereplaced(seesection‘Filter
replacementalerts’).
2 Switchofftheapplianceandunplugit.
3 Replacetheappropriatelter(seesection‘Replacingthelters’).
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5 To remove lter 3 (activated carbon lter), grab its tag and pull it
towards you.
6 To remove lter 4 (HEPA lter), grab its tag and pull it towards you.
7 Discard the lter that has to be replaced and unpack the new lter.
8 Put lter 4 (HEPA lter) back into the appliance.
Note: Make sure that the side with the tag points towards you.
9 Put lter 3 (activated carbon lter) back into the appliance.
10 AC4004 only: reattach lter 2 (multi-care lter) to the back of lter
1 (pre-lter).
Note: Make sure that the front of the multi-care lter points towards the pre-
lter.
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11 Put lter 1 (pre-lter) back into the appliance.
Note: Make sure that the side with the two projections points towards you.
Note: Make sure that all hooks are properly attached to the appliance.
12 To reattach the front panel, insert the two hooks into the top of
the appliance rst (1). Then push the panel against the body of the
appliance (2).
13 Put the plug in the wall socket and switch on the appliance again.
14 Press and hold the reset button below the lter replacement light of
the lter you have replaced to reset the appliance.
- Press and hold the reset button for lter 2 for 2 seconds if you have
replaced lter 2 (multi-care lter).
- Press and hold the reset button for lter 3/4 for 2 seconds if you have
replaced lter 3 (activated carbon lter) and 4 (HEPA lter).
, You hear a beep and the appliance starts operating in the auto mode
again.
New lters are available under the following type numbers:
Filter Type number
Filter 2: multi-care lter AC4121
Filter 3: activated carbon lter AC4123
Filter 4: HEPA lter AC4124
2
1
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AC4002 comes with the pre-lter, activated carbon lter and the HEPA
lter. For this appliance, only the lter cleaning light of lter 1 (pre-lter)
and the lter replacement light of lter 3 and 4 (activated carbon lter and
HEPA lter) have been activated.
If you want to enjoy the benets of the multi-care lter, you can purchase
this lter separately (see the table above). In combination with the HEPA
lter, the multi-care lter lters out dust, pollen and ultrane particles
larger than 20 nanometres, including bacteria and some viruses. According
to publications of the World Health Organization, the avian and human
inuenza viruses and Legionella bacterium are larger than 20 nanometres.
After installing the multi-care lter, you have to activate the lter
replacement indication of lter 2 in the following way:
1 Simultaneously press and hold the reset button for lter 1 (pre-lter)
and the reset button for lter 2 (multi-care lter) for 2 seconds.
- To deactivate the lter replacement indication of lter 2,
simultaneously press and hold the reset button for lter 1 (pre-lter)
and the reset button for lter 2 (multi-care lter) for 2 seconds.
Note: To check whether the lter replacement indication of the multi-care lter
is active or not, press the reset button for lter 2. If the lter replacement light
of lter 2 goes on for a few seconds, the lter replacement indication of the
multi-care lter is active. If the lter replacement light of lter 2 does not go
on, the lter replacement indication is not active.
- Do not throw away the appliance with the normal household waste
at the end of its life, but hand it in at an ofcial collection point for
recycling. By doing this, you help to preserve the environment.
If you need information or if you have a problem, please visit the Philips
website at www.philips.com or contact the Philips Consumer Care Centre
in your country (you nd its phone number in the worldwide guarantee
leaet). If there is no Consumer Care Centre in your country, go to your
local Philips dealer.
This chapter summarises the most common problems you could
encounter with the appliance. If you are unable to solve the problem with
the information below, contact the Consumer Care Centre in your country.
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Problem Possible solution
The appliance doesn’t
work.
You ignored the lter replacement lights. You did not replace a lter when
the corresponding lter replacement light and the REPLACE FILTER light
started ashing and did not respond when the appliance started to beep
every 30 minutes after approx. 2 weeks. As a result, the appliance is now
locked and you have to replace the lter and reset the appliance (see
chapter ‘Filter replacement’) so that the appliance can provide healthy air
again.
The AIR QUALITY lights
keep ashing and the
appliance does not work.
There is a problem with the air quality sensor of the appliance. Please
contact the Philips Consumer Care Centre in your country (you nd its
phone number in the worldwide guarantee leaet). If there is no Consumer
Care Centre in your country, go to your local Philips dealer.
No air comes out of the
air outlet
The appliance is not switched on. Put the plug in the wall socket and switch
on the appliance.
The air quality is good and the auto mode is activated. In this case, the
appliance stops operating automatically when the air is clean to save
electricity.
The airow that comes
out of the air outlet is
signicantly weaker than
before.
The pre-lter is dirty. Clean the pre-lter (see chapter ‘Cleaning’).
You haven’t removed all packaging material from the lters. Make sure that
you have removed all packaging material.
The air quality does not
improve, even though
the appliance has been
operating for a long time.
One of the lters has not been placed in the appliance. Make sure that
all lters are properly installed in the following order, starting with the
innermost lter: HEPA lter, activated carbon lter, multi-care lter (AC4004
only), pre-lter. The multi-care lter (AC4004 only) has to be attached to
the back of the pre-lter.
The air quality sensor is wet. The humidity level in your room is high and
causes condensation. Make sure that the air quality sensor is clean and dry
(see chapter ‘Cleaning’).
The room in which you run the appliance is larger than 30m², which is the
maximum size at which this air purier can operate effectively.
The AIR QUALITY
light does not change
colour even though
the appliance has been
operating for some time.
The air quality sensor is dirty. Clean the air quality sensor (see
chapter ‘Cleaning’).
I need cleaner air because
I have an allergy.
You can change the air quality sensor sensitivity (see chapter ‘Using the
appliance’) to make the air purier clean the air even better.
The appliance is extra
loud.
You have not removed all packaging material from the lters. Make sure that
you have removed all packaging material.
English22
Problem Possible solution
The appliance still
indicates that I need
to replace a lter, but I
already did.
Perhaps you did not reset the appliance. Plug in the appliance, press and
hold the reset button corresponding to the lter you have replaced. The
appliance beeps if you have reset it properly.
When I press the SLEEP
button, all lights except
for the SLEEP light go out.
When you press the SLEEP button, the appliance enters the SLEEP mode,
which is designed to allow you to sleep undisturbed. The appliance operates
quietly and only the SLEEP light is on. If you have activated the timer, one
of the HOUR lights is also on. All lights that are on in the SLEEP mode are
dimmed to allow you to sleep undisturbed.
The appliance stops
operating, although the
power-on light is still on.
The built in quality sensor has determined that the air quality is good and
that the air does not need to be cleaned anymore. When the air quality
deteriorates, the appliance is starts running at a low fan speed and noise
level so that the energy consumption is minimised.
The appliance does not
work. The air quality light
ring ashes blue, all other
lights are out.
This is air particle sensor error or an air particle sensor and gas sensor
error. Contact the Consumer Care Centre in your country (you nd its
phone number in the worldwide guarantee leaet). If there is no Consumer
Care Centre in your country, go to your local Philips dealer.
English 23
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Philips AC4002 User manual
- Category
- Air purifiers
- Type
- User manual
Philips AC4002 is a bedroom air purifier with a multi-stage filtration system that removes 99.97% of airborne particles, including bacteria, viruses, dust, pollen, and pet dander. It also has an activated carbon filter to remove odors and harmful gases, such as formaldehyde and benzene. With its compact design and quiet operation, the AC4002 is ideal for bedrooms and other small spaces.
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